20020700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 51059232

約数和(自身を除く): 31038532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 37, 50, 70, 74, 100, 140, 148, 175, 185, 259, 350, 370, 518, 700, 740, 773, 925, 1036, 1295, 1546, 1850, 2590, 3092, 3700, 3865, 5180, 5411, 6475, 7730, 10822, 12950, 15460, 19325, 21644, 25900, 27055, 28601, 38650, 54110, 57202, 77300, 108220, 114404, 135275, 143005, 200207, 270550, 286010, 400414, 541100, 572020, 715025, 800828, 1001035, 1430050, 2002070, 2860100, 4004140, 5005175, 10010350, 20020700]

約数ペア:

[(1, 20020700), (2, 10010350), (4, 5005175), (5, 4004140), (7, 2860100), (10, 2002070), (14, 1430050), (20, 1001035), (25, 800828), (28, 715025), (35, 572020), (37, 541100), (50, 400414), (70, 286010), (74, 270550), (100, 200207), (140, 143005), (148, 135275), (175, 114404), (185, 108220), (259, 77300), (350, 57202), (370, 54110), (518, 38650), (700, 28601), (740, 27055), (773, 25900), (925, 21644), (1036, 19325), (1295, 15460), (1546, 12950), (1850, 10822), (2590, 7730), (3092, 6475), (3700, 5411), (3865, 5180)]